Valve mechanism for internal-combustion engines.



w. M. BAUMHECKEL. VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED FEB- 61 I914.

Patented Mar. 27, 1917.

3 SHEETS-SHEET I.

l/Illf/ifll IIIAFIIl/Ill/ w.- M. BAUMHECKEL. VALVE MECHANISM FOR INTERNAL COMBUSTION EN GINES.

APPLICATION FILED FEB. 6,1914- 1,220,814=. Patented Mar. 27, 1917.

3 SHEETS-SHEET 2.

W. M. BAUMHECKEL.

VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED FEB-6,1914.

Patented Mar. 27, 1917.

3 SHE ETSSHEET 3.

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anism, and

struction and adjustment, and readily re- WILLIAM M. BAUMHECKEL, or cnvcxivivarr, 0111c.

. VALVE MECHANISM To all whom it may concern:

Be it known that 1, WILLIAM M. BAUM- HECKEL, a citizen of the United States, residing at Cincinnati, in the county of Ham ilton and State of Ohio, have invented cer: tain. new and useful'lmprovements in Valve Mechanisms for Internal-Combustion Engines, of which the following is a specification.

My invention relates ,to improvements in combustion engines. One of its objects is to provide an improved rotary valve mechanism to control the fuel intake and exhaust. Another objectis to provide a practically noiseless valve mechanism. Another object is to provide a readily accessible valve mechone which is simple in its conto enable the newable in whole or in part,

in perfect 'engine to be more readily kept operating condition.

rovide improved means to secure tight between the valve and stationary Another object is to provide an improved. balanced or equalizing rotary valve. Another object is to provide improved means to regulate or adjust the valve relative to its casing and to lubricate the valve. Another object is to, provide for maintaining the valve at low and even temerature. Another object is to provide an improved combination of rotary valve, cylinders, ports and valvesupporting and driv in mechanism. y invention also comprises certain details of form, combination, and arran ment, allof which will be fully set forth in the description of the accompanying drawings, in which:

Figure 1 is a sectional view on line '0 'v of Fig. 2 illustrating my improved valveapplied to. control the fuel supply and exhaust of two cylinders of afour cylinder engine. Fig. 2 is a top plan view of the cylinders and valve chamber with the valve removed.

Fi 3 is an inside plan view of the valve cham 1: cap. V y r Fig. 4 is a perspective view of the rotary valve detached.

Fig. 5 is a perspective view of one of the valve. port sealing rings detached.

Fig. 6 is an enlarged top plan view of the cylinders and valve chamber with the valve Fig. 7 is a section on line a: a: of Fig. 6 with the valve and cap in place.

FOR INTERNAL-COMBUSTION Specification of Letters Patent.

Another object is to casting until the ENGINES.

Patented Mar. 27,1917.

Application med February a, 1914.. Serial No. 317,045.

Fig. 8 is a central horizontal section through the valve Fig. 4.

Fig. 9 is an enlarged sectional detail of one of the ports and its sealing ring and illustrating a modification.

Fig. 10 is a vertical section through the cylinder and valve chamber on line 2 2 0 Fig. 11, and illustrating a modification in which the valve is of non-compensating type.

Fig. 11 is a top plan view of the cylinder and valve chamber cap and valve removed.

Fig. 12 is a view similar to Fig. 8 illustrating'a modification'of the valve to rotate at half engine speed. a

The accompanying drawings represent the preferred embodiment of my invention in which A A represent two cylinders of a combustion engine preferably cast integral with a water jacket 13 surrounding a portion of eachcylinder and a portion of the valve chamber or casing and also serving to cool the journal 2 of the valve stem or shaft 1). The two cylinders illustrated are designed to be used in connection with two similar cylinders in a four cylinder engine for driving an automobile or similar purpose. I contemplate the use of my improved valve mechanism, however, in connection with single cylinder engines, and also with engines of any desired number of cylinders requiring only obvious, changes in the location of the valve ports to correspond to the number of cylinders employed.

I preferably employ a hollow valve E presenting two opposite disk-like faces, 5 and 6' rotating close to, but slightly out of corn tact with, corresponding inner walls, 7 and -8,' of the valve casing, which is preferably an annular or cylindrical chamber formed partly in the cylinder casting over the cylinder heads, and closed at the top by a cap 9. Beneath the valve casin is a tube or sleeve 10 provided with a rigi 1y mounted journal or bearing 2 to rotatably support the valve stem D. The bearing 2 is ad ustable verti' cally to support the valve slightly out of contact with the inner face of the chamber by means of one or more detachable washers placed beneath said bearing. In order to accurately and conveniently ahne the faces of the valve and valve chamber the lower bearing 3 is preferably mounted 111 a casing L which is adjusted'relative to the cylinder. valve E travels true with casting Fig. 10 with the" valve stem 1) is keyed or rigidly secured. The journal 2 is vertically adjustable so as to support the valve slightly above and out of contact with the lower face of the valve casing, and so as also to be slightly out of contact with the under face 8 of the cap 9 thereby enabling the valve to rotate freely within the casing and out of contact with the walls-thereof. The valve F of the engine by meansof a spiral gear 12 on the main crank shaft meshing with a spiral gear 14 on the valve stem As illustrated in Figs. 1, 4, 6 and 8, the valve is designed to be driven at one-fourth the speed of the main crank shaft. It may, however, if desired, be driven at one-half the speed of the engine or at less than one-fourth of the engine speed. The valve may also, if desired, be driven by means of a sprocket chain or other type of gearing from that illustrated. In a four cyl' the valve for the other two ordinarily rotate in the opposite direction and have its ports arranged accordingly in order to cause the four cyhnders respectively to act at the proper intervals.

In order to avoid end thrust on the valve ."and to provide ample port areaI preferably vprovide two ports, G and from each cyl mder to the valve. The orts G lead directly'from beneath the va ve to the respectlve cylinders while the ports H lead from the respective cylinders around the periph- 'the valve directly above the one-fourth engine speed,

the valve and reach the upper face of ports G through 9. An exhaust port I leads from the perlphe of the valve casing C to the ex terior o the cylinder casting at 15 where the exhaust tube may be connected. The valve E where designed to rotate at as indicated in Figs. 4 and 8, is a hollow shell divided by partitions 16 into three compartments, an fitake compartment 17, which receives the el cap ,9, and conducts it through the chamber 17, and one or other of the passages 19 to the cylinder ports as the valve ports regisery of the cap ter therewith. As, the exhaust passages 20 mder engine such as illustrated cylinders would modification in which th supply through a central port 18 in the of the valve E respectively register with the cylinder ports, the cylinders are exhausted through the passages 20, chamber 21 and exhaust port I.

In order to secure face of the valve E and the terminals of the ports G, H and 18 ports, in which recesses are movable rings 24, which closely fit and slide upon the terminal tubes 25 of said ports and have their faces 26 held in close contact with compensating ports H are employed the charge at that point, or may be introduced as usual into the cylinder.

In Figs. 10 and 11 I have illustrated a e compensating ports H are dispensed with and the valve connected with the cylinder ports G through passages 19 and 20 in one face only of the valve, f plied as heretofore described through a central port 18,. In this form of valve the end thrust'on the valve is taken-up by means of a thrust bearing 34 which is tight joints between the.

I provide annular re .cesses 22 surrounding the terminals of said Mable of -ad-;

uel being preferably supj'ustment to retain the valve in the desired position in the valve chamber and slightly out of contact with the walls thereof.

In Fig. 12 I have illustrated a valve E designed to rotate at one:half the speed of the engine instead ofat one-fourth of the engine speed. Said valve is designed to receive its fuelsuppl central port, to con not the fuel to the cylinder-or cylinders successively through the port 19 and to exhaust the cylinder or cylinders through the port 20 as heretofore described. Said valvemay be employed with single or with double or compensating ports as heretofore described. The mechanism herein illustrated and de-,

scribed is capable of considerable modification without departing from the principle of my invention.

Having described'my invention, what I claim is:]

' 1. In. combination with a pair of cylinders, a valve mechanism for combustion engine comprising a 'valve chamber at the closed ends of said cylinders, an intake port leading theretoindependent ports leading therefrom directly to the respective cylinders, an exhaust port leadingtherefrom at one side-and a'lubricant supply port a valve rotatable freely in said valve chamber and provided with a passage to connect said intake port successively with said cylinder ports and an independent passage to suecessively connect said cylinder ports with said exhaust port.

2. Avalve mechanism for combustion engines comprising a cylindrical valve chamber having-a detachable cap to close one end thereof. an intake port leading centrally through said cap to' said valve chamber, a

'- a plurality of ports in the opposite end of said 7 valve chamber between the axis and periphcry of said chamber leading to separate engine cylinders, and an exhaust port leading om the periphery-of said valve chamber, a

' c lindrical valve rotatably mounted in said c amber and driven from the engine shaft in unison with the movements thereof, said valve bein' provided with a passage to connect said, uel supply port successively with' said cylinder ports through a portion of the rotation of the valve, an independent passage to successively connect said cylinder ports with said exhaust 1port through a portion of the rotation of t evalve, and a face to close said cylinder ports through a portion of the rotation of said valve.

A valve mechanism-for combustion encomprising a 'valve chamber having a. port leading therefrom to. the, engine 0 1111,

der and an exhaust port leading there rom,

a valve rotatably mounted therein-and'provided with apassage to conduct a fuel supply to said cylinder port and a passageto connect said cylinder port with said preferably through a port, a valve stem driven from the engine shaft to rotate said valve, said valve stem being supported by a rigidly mounted bearing close to said valve, and by an adjustably mountedybearing at a eater distance from saidvalve to provide or an accurate alinement of said Valve with the inner face of said valve chamber.

l. In combination with a pair of cylinders, a valve mechanism for combustion engine comprising a valve chamber at the closed ends of said cylinders, an intake port leading thereto at one end, independent ports leading therefrom directly to the respective cylinders at the opposite end, an exhaust port leading therefrom at one side, and a lubricant supply port, ,a valve rotatable freely in said valve chamber and provided with a passage to connect said intake port'successively with said cylinder orts and an independent passage to successively connect said cylinder ports with said ex-- haust port, annular recesses surrounding said valve chamber inlet and cylinder ports and annular members having sliding engagement with opposite walls of said recesses and yieldingly held in sliding contact with the face of said valve to secure tight joints surrounding said ports between said members and the face of the valve and between said members and the walls of said recesses.

5.. A valve mechanism for internal combustion engines comprising a cylindrical valve chamber having a central intake port at one end, an exhaust port through its side, and a cylinder port at its opposite end, a hollow cylindrical rotary valve located in said valve chamber and divided by a partition into two compartments with intake ports leading from opposite ends through one of said valve compartments, and exit ports leading from-one end and one sideto the engine cylinder from positionso'ppm' site'each other ateach end of said chamber,

and [an exhaust port leading from the side of said chamber, a hollow cylindrical valve divided by aapartition into an intakepassage and an exhaust passage to connect said intake and said exhaust ports. respectively with. said cylinder ports atdifierent positions ofthevalve, said valve being rotatably mounted in said valve chamber, and -means to introduce a lubricantninto valve chamber; 1: v v

7; A valve mechanism for combustion engines comprising a cylindrical valve cham; ber vhav'mg' an intake port, ports leading in pairs'to the engine cylinder from positions opposite eachother at each end of said chamber,'and an exhaust port leading from the side of said chamber, a hollow cylindrical valve divided by a partition into an intake passage and an exhaust passage to connectlubricant into said valve chamber.

8. A valve mechanism for combustion en-.

nes comprising a cylindrical valve cham-' it having an intake port, ports leading in pairs to engine cylinders .from positions op-' posite each other atr'each end of said chamber and an exhaust port leading from said chamber, a hollow cylindrical valve divided by a partition into anintake passage and an exhaust passageto connect said intake and exhaust ports respectively with a pair of saidcylinder ports at difi'erent positlons of the valve, membersv having sliding engagement withsaidcylinder ports and yieldin 1y held in, slidin engagement with said va veto maintain t ght joints between said ports'and the facesof said valve, means to rotate said valve within'said valve chamber in unison with the movements ofvthe engine shaft, and means to" introduce a lubricant into said valve chamber. I v A 9. Acompensating valve mechanism for combustion engines comprising 'a valve chamber having'an intake port, ports lead ing in pairs to engine cylinders from positions opposite each other in said chamber, and an exhaust port leading from said chamber, ahollow valve rotatablymounted in said chamber and divided by a. partition into an intake passage and an exhaust passage, to connect said intake and exhaust ports respectively with a pair of said cylin-' der ports at different positions of the valve,

members having sliding engagement with said intake andcylinder ports and yieldingly held in sliding engagement with said valve to'maintain tight joints between said ports and the face of said valve, and means to introduce a lubricant into said valve chamber. i

a 10. A valve mechanism for internal coms a s5 bustion engines comprising a valve chamber having anxmtakeport, a plurality of cylinder portsleading to separate cylinders 1 and eachservmg as ingress and egress ports, and an exhaust port, and a rotary valve divided by a partition into independent com.-

partments, an intake passage through one of said'valve compartments to register with the respective cylinder ports, and an exhaust passage through the other valve compartment to. register with the respective cylin der ports, said valve being driven by an in definite speed ratio relat ve to the engine shaft. I

' In testimony whereof I have aflixed my signature in presence of two witnesses WILLIAM M. BAUMHEOKEL. Witnesses;

; QMn'mg, e

THORNTON Boom.

Correction in Letters Patent No. 220,814.

It is hereby certified that in Letters Patent No. 1,220,814, granted March 27, 1917, upon the application of William M. Bnumheekel, of Cincinnati, Ohio, fur an improvement in Valve Mechanisms for Internal-Combustion Engines," an errur appears in the printed specification requiring correction as follows: Page 4, liner. 66-67, claim 10, for the words an indefinite" read and in definite: and that the said Letters Patent should be read with this correction therein that the same may conforinfto the record of the ease in the Patent Ofiiee.

Signed and sealed this 17th day of April, A. D., 1917.

[sent] R. F. WHITEHEAD,

Acting Commissioner of PM. 

